X-Sum - Cross Sum Puzzle
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Everyone
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About this game
Sharpen your mind with X-Sum - Cross Sum Puzzle, a clean and satisfying number puzzle built around logic and deduction.
Fill each grid with the numbers 1 to n so that every row and column contains each number exactly once. The clues around the grid show the X-Sum: the sum of the first x numbers seen from that side, where the first number tells you how many numbers to count.
It starts simple, then quickly becomes a rewarding logic challenge with smart deductions and satisfying breakthroughs.
Features:
- Pure logic gameplay
- Easy to learn, tricky to master
- Clean and readable interface
- Multiple difficulty levels
Great for quick sessions or longer puzzle solving
Designed for thoughtful, relaxing play
If you enjoy number puzzles, brain teasers, and logic games, X-Sum - Cross Sum Puzzle delivers a fresh twist with a simple rule and deep gameplay.
Fill each grid with the numbers 1 to n so that every row and column contains each number exactly once. The clues around the grid show the X-Sum: the sum of the first x numbers seen from that side, where the first number tells you how many numbers to count.
It starts simple, then quickly becomes a rewarding logic challenge with smart deductions and satisfying breakthroughs.
Features:
- Pure logic gameplay
- Easy to learn, tricky to master
- Clean and readable interface
- Multiple difficulty levels
Great for quick sessions or longer puzzle solving
Designed for thoughtful, relaxing play
If you enjoy number puzzles, brain teasers, and logic games, X-Sum - Cross Sum Puzzle delivers a fresh twist with a simple rule and deep gameplay.
Updated on
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No data shared with third parties
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No data collected
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What’s new
Enjoy a fresh logic puzzle where clues determine how many numbers to sum from each side. Easy to learn, satisfying to solve, and designed for pure deduction.
Includes multiple difficulty levels and a clean, responsive interface for smooth gameplay.
Includes multiple difficulty levels and a clean, responsive interface for smooth gameplay.
App support
About the developer
Eldstorm AB
contact@eldstorm.se
Stora Esplanadgatan 25K
803 21 Gävle
Sweden
+46 73 257 21 36
